EP3503207B1 - Module de cellule solaire - Google Patents

Module de cellule solaire Download PDF

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Publication number
EP3503207B1
EP3503207B1 EP19155708.1A EP19155708A EP3503207B1 EP 3503207 B1 EP3503207 B1 EP 3503207B1 EP 19155708 A EP19155708 A EP 19155708A EP 3503207 B1 EP3503207 B1 EP 3503207B1
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EP
European Patent Office
Prior art keywords
olw1
lead wire
solar cell
cell module
junction box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19155708.1A
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German (de)
English (en)
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EP3503207A1 (fr
Inventor
Sanghwan Park
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LG Electronics Inc
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LG Electronics Inc
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/0216—Coatings
    • H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • H01L31/02168—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells the coatings being antireflective or having enhancing optical properties for the solar cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02—Details
    • H01L31/02002—Arrangements for conducting electric current to or from the device in operations
    • H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
    • H01L31/02008—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules
    • H01L31/02013—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier for solar cells or solar cell modules comprising output lead wires elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S136/00—Batteries: thermoelectric and photoelectric
    • Y10S136/291—Applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S136/00—Batteries: thermoelectric and photoelectric
    • Y10S136/291—Applications
    • Y10S136/293—Circuits

Definitions

  • This document relates to a solar cell module having a plurality of solar cells.
  • a solar cell converts solar energy into electric energy using a photoelectric transformation effect.
  • One solar cell produces a small amount of power, usually a few volts.
  • a solar cell module can be configured by connecting several solar cells in series or in parallel. Waterproofing is used to protect the solar cells of the module.
  • conductors e.g., inter-connectors
  • lead wires to output power generated by the solar cell module.
  • the lead wires are connected with a junction box to output power through a power line of the junction box.
  • the lead wire is disposed in an additional area outside of an area in which the solar cells are located in a solar cell panel.
  • the additional area which is required for the lead wire, does not contribute to power generation.
  • the additional portion causes an increase in the size of the solar cell panel and an associated increase in the size of the solar cell module.
  • WO 2008/042194 A2 discloses a terminal bus for a photovoltaic module, the terminal bus comprising a terminal connection end to couple to an electrical terminal of the photovoltaic module; a cell connection end opposite the terminal connection end; and a nonlinear portion between the terminal connection end and the cell connection end.
  • the terminal bus further comprises a plurality of photovoltaic cells within the photovoltaic module; a junction box to house the electrical terminal, the junction box coupled to the photovoltaic module to facilitate electrical coupling of the photovoltaic module to an external component of a photovoltaic system, wherein the terminal bus is coupled to the electrical terminal of the junction box; and a cell connection piece coupled between the terminal bus and the plurality of photovoltaic cells.
  • a solar cell module comprises: a solar cell panel including an array of solar cells defining a plurality of strings, each of the plurality of strings including a plurality of solar cells in electrical connection and arranged in a row; a plurality of interconnectors electrically connecting the plurality of solar cells of the strings; a junction box that receives electric current generated from the plurality of strings; and a plurality of lead wires electrically coupling the junction box to an end portion of the interconnectors, wherein the plurality of lead wires are arranged such that they do not overlap with each other.
  • the plurality of strings includes may comprise two outer strings positioned closest to two outer edges of the solar cell panel and one or more inner strings positioned between the outer strings. In this case, an even number of inner strings may be formed. Accordingly, the solar cell module may comprise even number of strings such as four, six, eight, and ten strings.
  • Each of the plurality of lead wires includes an interconnector connection part connected to the interconnector of a respective string, and the interconnector connection parts of the respective lead wires are arranged in a straight line.
  • the interconnector connection parts of outer lead wires connected to the interconnectors of the outer strings and the interconnector connection parts of inner lead wires connected to the interconnectors of the inner strings are arranged in a straight line.
  • the interconnector connection parts of the outer lead wires and those of the inner lead wires are arranged in series, an invalid portion that does not contribute to power generation can be reduced compare with the case where the interconnector connection parts are arranged in parallel, and accordingly, the size of the solar cell panel can be reduced.
  • the lead wire of the plurality of lead wires that is connected to the interconnector of an outer string includes a junction box connection part coupled to the junction box and a coupling part coupled to the interconnector connection part and the junction box connection part.
  • junction box connection part and the interconnector connection part of the lead wire of the plurality of lead wires that is connected to the interconnector of the outer string are arranged orthogonal to each other.
  • the coupling part of the lead wire of the plurality of lead wires that is connected to the interconnector of the outer string includes a first coupling part coupled to the interconnector connection part such that the first coupling part is orthogonal to and intersects the interconnector connection part and a second coupling part coupled to the first coupling part and the junction box connection part such that the second coupling part is parallel to the interconnector connection part.
  • the interconnector connection part, the first coupling part, the second coupling part, and the junction box connection part of the lead wire of the plurality of lead wires that is connected to the interconnector of the outer string may be integrally formed, or at least one of them may be formed to be separated from the other parts.
  • the interconnector connection part, the first coupling part, the second coupling part, and the junction box connection part of the outer lead wire may be formed separately.
  • an end portion of the interconnector connection part of the outer lead wire may be positioned at a lower side of an end portion of the first coupling part
  • an end portion of the junction box connection part may be positioned at a lower side of an end portion of the second coupling part.
  • a lead wire of the plurality of lead wires that is coupled to an interconnector of an inner string further includes a junction box connection part coupled to the junction box and the interconnector connection part of the lead wire of the plurality of lead wires that is coupled to the interconnector of the inner string, such that the junction box connection part is orthogonal to the interconnector connection part.
  • the interconnector connection part and the junction box connection part of the inner lead wire may be integrally formed or may be separately formed. When the interconnector connection part and the junction box connection part of the inner lead wire are separately formed, the interconnector connection part of the inner lead wire may be positioned at a lower side of the junction box connection part.
  • the solar cell module may further comprise: an insulating film for insulating the plurality of lead wires from the interconnectors and the solar cells, and the insulating film may be made of an opaque material.
  • the insulating film is made of the same opaque material as that of a back sheet, the coupling part and the junction box connection part of the outer lead wire and the coupling part and the junction box connection part of the inner lead wire are not seen from a front side of the solar cell module, so the external appearance of the solar cell module can be improved.
  • the solar cells used for the solar cell module having the foregoing configuration may comprise first and second electrodes which are positioned on different surfaces and have different polarities, respectively, or may comprise first and second electrodes which are positioned on the same surface and have different polarities.
  • junction box connection part and the interconnector connection part of the outer lead wire may be arranged to be parallel to each other, and the coupling part may be arranged to cross the junction box connection part and the interconnector connection part.
  • junction box connection part, the coupling part, and the interconnector connection part of the outer lead wire may be integrally formed or at least one of them may be formed to be separated from the other parts.
  • the interconnector connection part, the coupling part, and the junction box connection part of the outer lead wire may be formed separately, and in this case, an end portion of the interconnector connection part of the outer lead wire may be positioned at a lower side of one end portion of the coupling part, and an end portion of the junction box connection part may be positioned at a lower side of another end portion of the coupling part.
  • An inner lead wire coupled to an interconnector of the inner string, among the plurality of lead wires, may further include a coupling part coupled to the interconnector connection part and a junction box connection part coupled to the coupling part.
  • junction box connection part and the interconnector connection part of the inner lead wire may be arranged to be parallel to each other, and the coupling part may be arranged to cross the junction box connection part and the interconnector connection part.
  • junction box connection part, the coupling part, and the interconnector connection part of the inner lead wire may be integrally formed, or at least one of them may be formed to be separated from the other parts.
  • the interconnector connection part, the coupling part, and the junction box connection part of the inner lead wire may be formed separately, and in this case, an end portion of the interconnector connection part may be positioned at a lower side of one end portion of the coupling part, and an end portion of the junction box connection part may be positioned at a lower side of another end portion of the coupling part.
  • At least one of the plurality of interconnectors is arranged to traverse atop at least one solar cell of the array of solar cells.
  • a lead wire may comprise: an interconnector connection part configured to be connected to an interconnector electrically coupling a plurality of solar cells of the solar cell module; and a junction box connection part configured to be connected to a junction box of the solar cell module, wherein the plurality of lead wires are arranged such that they do not overlap with each other when connected to the interconnectors and the junction box.
  • the lead wire may further comprise a coupling part that couples the interconnector connection part and the junction box connection part, and in this case, the coupling part may be integrally formed with the interconnector connection part and the junction box connection part.
  • a solar cell module comprises: an array of solar cells defining a plane and having a width and length defined by constituent peripheral cells of the array; a plurality of interconnectors, each of the plurality of interconnectors electrically coupling a row of solar cells of the array extending in a lengthwise direction; a plurality of leads, each of the plurality of leads being electrically coupled to a respective interconnector of the plurality of interconnectors and a portion of at least one of the plurality of leads extending in a widthwise direction and overlapping at least one solar cell of the array; a junction box physically coupled to each of the plurality of the leads and electrically coupled to each of the plurality of interconnectors through the leads; and an insulating layer insulating the plurality of leads wires from the solar cells and the plurality of interconnectors.
  • the insulation layer is positioned between the array of solar cells and the plurality of leads.
  • the insulation layer is positioned to obscure a view of an entire portion of the plurality of leads traversing in the lengthwise direction when viewed from a front side of the solar cell module, the front side being a side upon which light is incident for energy generation.
  • the solar cell module further comprises a back sheet that protects a surface of the solar cell module opposite a surface upon which light is incident, wherein the plurality of leads are printed on the back sheet.
  • the insulation layer is opaque.
  • At least one portion of a lead of the plurality of leads is located beyond a periphery of the insulating layer, the portion of the lead connecting with an interconnector.
  • FIG. 1 is a front view of a solar cell module
  • FIG. 2 is an exploded perspective view of the solar cell panel illustrated in FIG. 1
  • FIG. 3 is a rear view of the solar cell panel illustrated in FIG. 1 .
  • FIG. 4 is an enlarged view of a configuration of lead wires of the solar cell panel
  • FIG. 5 is a perspective view of a portion of the solar cell illustrated in FIG. 1 .
  • a solar cell module 100 includes a solar cell panel 200.
  • the solar cell panel 200 includes a plurality of solar cells 210, interconnectors 220 that electrically couple the neighboring solar cells 210, protection layers (e.g., EVA: Ethylene Vinyl Acetate) 230 protecting the solar cells 210, a transparent member 240 disposed on the protection layer 230 on a side of a light receiving surface of the solar cells 210, and a back sheet 250 made of an opaque material and disposed at a lower side of the protection layer 230, which is opposite of the light receiving surface of the solar cells 210.
  • EVA Ethylene Vinyl Acetate
  • the solar cell module 100 also includes a frame 300 for receiving the components integrated through a lamination process and a junction box 400 for collecting power generated by the solar cells 210.
  • the back sheet 250 prevents moisture from infiltrating through the rear surface of the solar cell module 100, thus protecting the solar cells 210 against an external environment.
  • the back sheet 250 may have a multi-layered structure that includes a layer for preventing moisture and oxygen infiltration, a layer for preventing chemical corrosion, and a layer having electrical insulating characteristics.
  • the protection layers 230 when disposed at the upper and lower sides of the solar cells 210, are integrated with the solar cells 210 through a lamination process.
  • the protection layers 230 serve to prevent corrosion that can be caused by moisture infiltration and protect the solar cells 210 against damage caused by impact forces.
  • the protection layers 230 may be made of a polymeric insulating material, such as Ethylene Vinyl Acetate (EVA).
  • the transparent member 240 positioned on the protection layer 230 is made of tempered glass having a high transmittance and excellent anti-damage function.
  • the tempered glass may be low iron tempered glass having a low iron content.
  • An inner surface of the transparent member 240 may be subjected to an embossing process in order to enhance a light diffusion effect of the transparent member 240.
  • the solar cells 210 of the solar cell panel 200 include a substrate 211 and an emitter part 212 positioned on a light receiving surface of the substrate 211 onto which light is incident.
  • First electrodes 213 are included on the emitter part 212, and at least one first collector 214 is included on the emitter part 212.
  • An anti-reflection layer 215 is included on regions of the emitter part 212 where the first electrodes 213 and the first collector 214 are not located, and a second electrode 216 and second collectors 217 are included on the opposite side of the light receiving surface.
  • the solar cell 210 may further include a back surface field (BSF) part formed between the second electrode 216 and the substrate 211.
  • the BSF part is a region, heavily doped with the same conductive type impurities as that of the substrate 211, such as a p+ region.
  • the BSF part serves as a potential barrier at the back surface of the substrate 211.
  • the phenomenon by which electrons and holes re-combine and become extinct at the back surface of the substrate 211 can be reduced, and thus, the efficiency of the solar cells 210 can be improved.
  • the substrate 211 is a semiconductor substrate made of silicon of a first conductive type, (e.g., p-type conductive type silicon).
  • the silicon may be, for example, monocrystalline silicon, polycrystalline silicon, or amorphous silicon.
  • the substrate 211 may contain impurities of a trivalent element such as boron (B), gallium (Ga), indium (In), or the like.
  • the substrate 211 is processed in order to make the surface of the substrate 211 a textured surface. Because the surface of the substrate 211 is texturized, a light reflectivity at the light receiving surface of the substrate 211 can be reduced. Moreover, the textured surface of the substrate 211 operates to direct reflected light into the interior of the solar cells, increasing a light absorption rate. Accordingly, the efficiency of the solar cells can be improved.
  • the emitter part 212 is an area where second conductive type, which is opposite to the conductive type of the substrate 211 (e.g., n-type conductive type), impurities are doped.
  • the emitter part 212 forms a p-n junction with the substrate 211.
  • the emitter part 212 may be formed by doping impurities of a group 5 element such as phosphor (P), arsenic (As), antimony (Sb), or the like.
  • the electrons in the interior of the semiconductor receive energy from light incident on the substrate 211, the electrons migrate toward an n-type semiconductor, while holes migrate toward a p-type semiconductor.
  • the substrate 211 is a p-type semiconductor while the emitter part 212 is an n-type semiconductor, the separated holes migrate toward the substrate 211 and the separated electrons migrate toward the emitter part 212.
  • the substrate 211 may be an n-type conductive type and made of a semiconductor material other than silicon.
  • the substrate 211 may contain impurities of a group 5 element such as phosphor (P), arsenic (As), antimony (Sb), and the like.
  • the emitter part 212 forms the p-n function with the substrate 211, when the substrate 211 has the n-type conductive type, the emitter part 212 has a p-type conductive type. In this case, the separated electrons transfer toward the substrate 211 and the separated holes transfer toward the emitter part 212.
  • the emitter part 212 may be formed by doping impurities of a trivalent element such as boron (B), gallium (Ga), indium (In), and the like, on the substrate 211.
  • a trivalent element such as boron (B), gallium (Ga), indium (In), and the like
  • the anti-reflection layer 215 may be formed of a silicon nitride film (SiNx), a silicon oxide film (SiO2), or the like, and is positioned on the emitter part 212 of the substrate 211.
  • the anti-reflection layer 215 serves to reduce the portion of light incident on the solar cell 210 that is reflected and increases selectivity of a particular wavelength region, thus enhancing the efficiency of the solar cell 210.
  • the anti-reflection layer 215 may have a thickness ranging from 70 nm to 80 nm, or may be omitted as necessary.
  • the plurality of first electrodes 213 are positioned on the emitter part 212 and electrically coupled to the emitter part 212.
  • the plurality of first electrodes 213 are positioned in one direction and are separated from each other.
  • the first electrodes 213 collect charge carriers (e.g., electrons) that have migrated toward the emitter part 212 and conduct the collected electrons to the corresponding first collector 214.
  • the plurality of first electrodes 213 may be made of at least one conductive material, and the conductive material may be at least one material selected from the group consisting of nickel (Ni), copper (Cu), silver (Ag), tin (Sn), zinc (Zn), indium (In), titanium (Ti), gold (Au), and any of their combinations or alloys, or also may be made of any other conductive metal material.
  • the conductive material may be at least one material selected from the group consisting of nickel (Ni), copper (Cu), silver (Ag), tin (Sn), zinc (Zn), indium (In), titanium (Ti), gold (Au), and any of their combinations or alloys, or also may be made of any other conductive metal material.
  • the plurality of first collectors 214 are positioned on the emitter part 212 and are referred to as a bus bar.
  • the first collectors 214 are positioned to cross the first electrodes 213. Accordingly, the first electrodes 213 and the first collectors 214 are disposed to cross each other on the emitter part 212.
  • the first collectors 214 may be made of at least one conductive material and coupled to the emitter part 212 and to the first electrodes 213. Accordingly, the first collectors 214 output carriers, e.g., electrons, conducted by the first electrodes 213 to an external device.
  • a conductive metal material of the first collectors 214 may be at least one material selected from the group consisting of nickel (Ni), copper (Cu), silver (Ag), tin (Sn), zinc (Zn), indium (In), titanium (Ti), gold (Au), and any combination or alloy of these, or also may be made of any other conductive metal material.
  • the plurality of first collectors 214 may contain the same material as that of the first electrodes 213, but may also contain a different material.
  • the first electrodes 213 and the first collectors 214 may be formed by coating a conductive metal material on the anti-reflection layer 215, patterning the conductive metal material. The conductive metal material can then be baked. During this forming process, the first electrodes 213 and the first collectors 214 may be electrically coupled to the emitter part 212 according to a punch-through operation. Alternatively, the first electrodes 213 and the first collectors 214 may be formed separately and/or through different processes.
  • the second electrode 216 is positioned on the side opposite of the light receiving surface of the substrate 211, namely, on the back surface of the substrate 211, and collects carriers (e.g., holes) migrating toward the substrate 211.
  • the second electrode 216 is made of at least one conductive material.
  • the conductive material may be at least one material selected from the group consisting of nickel (Ni), copper (Cu), silver (Ag), tin (Sn), zinc (Zn), indium (In), titanium (Ti), gold (Au), and any of their combinations or alloys, or also may be made of any other conductive metal material.
  • a plurality of second collectors 217 are positioned under the second electrode 216 or on the same surface on which the second electrode 216 is formed.
  • the second collectors 217 cross the first electrodes 213, and the second collectors 217 can be parallel to the first collectors 214.
  • the second collectors 217 are made of at least one conductive material and are electrically coupled to the second electrode 216. Accordingly, the second collectors 217 output carriers (e.g., holes) conducted from the second electrode 216 to an external device or another conductor.
  • carriers e.g., holes
  • a conductive metal material of the second collectors 217 may be at least one material selected from the group consisting of nickel (Ni), copper (Cu), silver (Ag), tin (Sn), zinc (Zn), indium (In), titanium (Ti), gold (Au), and any of their combinations or alloys, or may be made of any other conductive metal material.
  • FIG. 3 spaces between the solar cells 210 are magnified for illustrative purposes, but substantially, the neighboring solar cells 210 are disposed at certain intervals (e.g., at narrow intervals of 3mm or smaller), as shown in FIG. 1 .
  • the plurality of solar cells 210 provided in the solar cell panel 200 are arranged in the form of a plurality of "strings.”
  • the "strings” refer to a plurality of solar cells arranged in a row and electrically connected with each other in series.
  • the solar cell module 200 illustrated in FIGS. 1 to 3 has four strings, e.g., first to fourth strings S1, S2, S3, and S4. As shown, the strings are arranged in a lengthwise direction and are arranged next to adjacent strings, side-by-side in a widthwise direction.
  • first and fourth strings S1 and S4 positioned at the corners of the solar cell panel 200 will be referred to as outer strings
  • the second and third strings S2 and S3 positioned between the outer strings S1 and S4 will be referred to as inner strings.
  • the plurality of solar cells 210 arranged at the respective strings S1 to S4 are electrically coupled by interconnectors 220.
  • the first collectors (214 in FIG. 5 ) of one solar cell among the plurality of solar cells disposed to be adjacent to each other in a vertical direction within one string (e.g., the first string S1) are electrically coupled with the second collectors (217 in FIG. 5 ) of the neighboring solar cell by interconnectors 220a.
  • interconnectors 220a positioned at one end portion of the first string S1 are connected with interconnectors 220b positioned at one end portion of the second string S2 by interconnectors 222.
  • interconnectors 220c positioned at one end portion of the third string S3 are connected with the interconnectors 220d positioned at one end portion of the fourth string S4 by the interconnectors 222.
  • Lead wires (LW) for transferring power generated from the solar cells 210 to the junction box 400 are coupled to the interconnectors 220a, 220b, 220c, and 220d positioned at the other end portions of the strings S1 to S4.
  • lead wires coupled to the interconnectors 220a and 220d of the outer strings namely, the first and fourth strings S1 and S4
  • OGW outer lead wires
  • ILW inner lead wires
  • the lead wire coupled to the interconnectors 220a of the first string S1 will be referred to as a first outer lead wire OLW1
  • the lead wire coupled to the interconnectors 220d of the fourth string S4 will be referred to as a second outer lead wire OLW2
  • the lead wire coupled to the interconnectors 220b of the second string S2 will be referred to as a first inner lead wire ILW1
  • the lead wire coupled to the interconnectors 220c of the third string S3 will be referred to as a second inner lead wire ILW2.
  • first outer lead wire OLW1 and the second outer lead wire OLW2 do not overlap with the first inner lead wire ILW1 and the second inner lead wire ILW2. Thus, there is no electrical connection or other interaction or interference between the outer lead wires OLW1 and OLW2 and the inner lead wires ILW1 and ILW2.
  • the first outer lead wire OLW1 includes an interconnector connection part OLW1-1 connected to the interconnector 220a, a coupling part OLW1-2 connected to one end portion of the interconnector connection part OLW1-1, and a junction box connection part OLW1-3 connected to the other end portion of the coupling part OLW1-2.
  • the second outer lead wire OLW2 includes an interconnector connection part OLW2-1 connected to the interconnector 220d, a coupling part OLW2-2 connected to one end portion of the interconnector connection part OLW2-1, and a junction box connection part OLW2-3 connected to the other end portion of the coupling part OLW2-2.
  • the first inner lead wire ILW1 includes an interconnector connection part ILW1-1 connected to the corresponding interconnector 220b and a junction box connection part ILW1-2 connected to one end portion of the interconnector connection part ILW1-1.
  • the second inner lead wire ILW2 includes an interconnector connection part ILW2-1 connected to the corresponding interconnector 220c and a junction box connection part ILW2-2 connected to one end portion of the interconnector connection part ILW2-1.
  • the interconnector connection part (OLW1-1, OWL-2-1, ILW1-1, and ILW2-1) of each lead wire connected to the interconnectors (2201, 220b, 220c, and 220d) is also called a "bus (bar) ribbon” or a "bus (bar) interconnector".
  • the interconnector connection parts OLW1-1 and OLW2-1 of the first and second outer lead wires OLW1 and OLW2 are arranged to cross the corresponding interconnectors 220a and 220d, respectively, and the junction box connection parts OLW1-3 and OLW2-3 are arranged to cross the interconnector connection parts OLW1-1 and OLW2-1, namely, arranged to be parallel to the interconnectors 220a and 220d, respectively.
  • interconnector connection parts ILW1-1 and ILW2-1 of the first and second inner lead wires ILW1 and ILW2 are arranged to cross the corresponding interconnectors 220b and 220c, respectively, and the junction box connection parts ILW1-2 and ILW2-2 are arranged to cross the interconnector connection parts ILW1-1 and ILW2-1, respectively.
  • interconnector connection part OLW1-1 of the first outer lead wire OLW1 is arranged in a generally straight line with the interconnector connection part ILW1-1 of the first inner lead wire ILW1.
  • interconnector connection part ILW2-1 of the second inner lead wire ILW2 is arranged in a straight line with the interconnector connection part OLW2-1 of the second outer lead wire OLW2.
  • the interconnector connection part OLW1-1 of the first outer lead wire OLW1, the interconnector connection part ILW1-1 of the first inner lead wire ILW1, the interconnector connection part ILW2-1 of the second inner lead wire ILW2, and the interconnector connection part OLW2-1 of the second outer lead wire OLW2 are generally arranged in a straight line overall.
  • the interconnector connection part OLW1-1 of the first outer lead wire OLW1 and the interconnector connection part OLW2-1 of the second outer lead wire OLW2 are disposed in a straight line with the interconnection connection part ILW1-1 of the first inner lead wire ILW1 and the interconnector connection part ILW2-1 of the second inner lead wire ILW2, a portion or region of the solar cell panel 200 that is not used for producing energy, i.e., a portion in which the lead wires LW are disposed, can be reduced compared to the related art in which the interconnector connection parts are disposed beside each other.
  • the coupling part OLW1-2 coupling the interconnector connection part OLW1-1 of the first outer lead wire OLW1 and the junction box connection part OLW1-3 includes a first coupling part OLW1-2-1 coupled to an end portion of the interconnector connection part OLW1-1 such that it crosses the interconnector connection part OLW1-1 and a second coupling part OLW1-2-2 coupled to the first coupling part OLW1-2-1 and the junction box connection part OLW1-3 such that it is parallel to the interconnector connection part OLW1-1.
  • the first outer lead wire OLW1 is arranged in a stepwise manner.
  • an end portion of the interconnector connection part OLW1-1 of the first outer lead wire OLW1 is positioned under an end portion of the first coupling part OLW1-2-1
  • an end portion of the junction box connection part OLW1-3 is positioned under an end portion of the second coupling part OLW1-2-2.
  • one or more of the interconnector connection part OLW1-1 of the first outer lead wire OLW1, the first coupling part OLW1-2-1, the second coupling part OLW1-2-2 and the junction box connection part OLW1-3 can be formed as a unitary member and the portions thereof corresponding to such parts can be formed by bends, joints, or other transitions of the unitary member.
  • the coupling part OLW2-2 coupling the interconnector connection part OLW2-1 of the second outer lead wire OLW2 and the junction box connection part OLW2-3 includes a first coupling part OLW2-2-1 coupled to an end portion of the interconnector connection part OLW2-1 such that it crosses the interconnector connection part OLW2-1 and a second coupling part OLW2-2-2 coupled to the first coupling part OLW2-2-1 and the junction box connection part OLW2-3 such that it is parallel to the interconnector connection part OLW2-1.
  • the second outer lead wire OLW2 is arranged in a stepwise manner.
  • an end portion of the interconnector connection part OLW2-1 of the second outer lead wire OLW2 is positioned under an end portion of the first coupling part OLW2-2-1
  • an end portion of the junction box connection part OLW2-3 is positioned under an end portion of the second coupling part OLW2-2-2.
  • one or more of the interconnector connection part OLW2-1 of the second outer lead wire OLW2, the first coupling part OLW2-2-1, the second coupling part OLW2-2-2 and the junction box connection part OLW2-3 can be formed as a unitary member and the portions thereof corresponding to such parts can be formed by bends, joints, or other transitions of the unitary member.
  • the interconnector connection parts ILW1-1 and ILW2-1 are positioned under the junction box connection parts ILW1-2 and ILW2-2.
  • the first outer lead wire OLW1 does not overlap with the first inner lead wire ILW1
  • the second outer lead wire OLW2 does not overlap with the second inner lead wire ILW2.
  • the lead wires do not overlap, there is no need to include an insulating film between the outer lead wires OLW1 and OLW2 and the inner lead wires ILW1 and ILW2.
  • an insulating film would need to be disposed between the outer lead wires OLW1 and OLW2 and the inner lead wires ILW1 and ILW2 in order to prevent the coupling parts OLW1-2 and OLW2-2 of the outer lead wires OLW1 and OLW2 from contacting the interconnector connection parts ILW1-1 and ILW2-1 of the inner lead wires ILW1 and ILW2 at an overlapping portion.
  • the interconnector connection parts OLW1-1 and OLW2-1 of the outer lead wires OLW1 and OLW2 and the interconnector connection parts ILW1-1 and ILW2-1 of the inner lead wires ILW1 and ILW2 are arranged in a generally straight line and the outer lead wires OLW1 and OLW2 are arranged in the stepwise configuration, there is no need to include an insulating film or other electrical insulating material for insulating the outer lead wires OLW1 and OLW2 and the inner lead wires ILW1 and ILW2 from one another, so the manufacturing cost and the number of manufacturing processes for the solar cell panel 200 can be reduced.
  • an insulating film 260 used to insulate the outer lead wires OLW1 and OLW2 and the inner lead wires ILW1 and ILW2 from the solar cells 210 and the interconnectors is formed to have a size sufficient for covering the entirety of the coupling parts OLW1-2 and OLW2-2 of the outer lead wires OLW1 and OLW2, a portion of the junction box connection parts OLW1-3 and OLW2-3, and a portion of the junction box connection parts ILW1-2 and ILW2-2 of the inner lead wires ILW1 and ILW2.
  • the insulating film 260 is positioned on the rear surface of the solar cell 210 and in the spaces between the lead wires OLW1, OLW2, ILW1 and ILW2.
  • the insulating film 260 is made of an opaque material which is similar to or the same as that of the back sheet 250. Because the material of the insulating film 260 is opaque, only the interconnector connection parts OLW1-1, OLW2-1, ILW1-1, and ILW2-1 of the lead wires OLW1, OLW2, ILW1, and ILW2 are seen at the back side of the solar cell module 100, so the external appearance and insulation characteristics can be improved.
  • the lead wires do not extend beyond the interconnector connection parts OLW1-1, OLW-2-1, ILW-1-1, and ILW-2-1, only the interconnector connection parts OLW1-1, OLW2-1, ILW1-1, and ILW2-1 of the lead wires OLW1, OLW2, ILW1, and ILW2 are seen at the front back side of the solar cell module 100.
  • the interconnector connection parts OLW1-1 and OLW2-1, the first coupling parts OLW1-2-1 and OLW2-2-1, the second coupling parts OLW1-2-2 and OLW2-2-2, and the junction box connection parts OLW1-3 and OLW2-3 of the outer lead wires OLW1 and OLW2 are described as being divided (i.e., separate wires).
  • the interconnector connection parts ILW1-1 and ILW2-1 and the junction box connection parts ILW1-2 and ILW2-2 of the inner lead wires ILW1 and ILW2 are described as being divided (i.e., separate wires).
  • the design of solar cell module 100 is not limited thereto and the lead wires OLW1, OLW2, ILW1, and ILW2 may be integrally formed.
  • the outer lead wires OLW1 and OLW2 are each configured as a single body, respectively, and each body includes interconnector connection parts OWL1-1 and OLW2-2, first coupling parts OLW1-2-1 and OLW2-2-1, second coupling parts OLW1-2-2 and OLW2-2-2, and junction box connection parts OLW1-3 and OLW2-3.
  • the inner lead wires ILW1 and ILW2 are each configured as a single body, respectively, and each body includes interconnector connection parts ILW1-1 and ILW2-1 and junction box connection parts ILW1-2 and ILW2-2.
  • the outer lead wires OLW1 and OLW2 and the inner lead wires ILW1 and ILW2 may be configured as a single body, respectively.
  • at least one of the interconnector connection parts OLW1-1 and OLW2-1, the first coupling parts OLW1-2-1 and OLW2-2-1, the second coupling parts OLW1-2-2 and OLW2-2-2, and the junction box connection parts OLW1-3 and OLW2-3 of the outer lead wires OLW1 and OLW2 may be formed as a separate member from the other parts.
  • FIG. 7 is an enlarged view of lead wires according to another modification of the lead wires of FIG. 3 .
  • the modification illustrated in FIG. 7 may be used when connection parts of the junction box 400 (shown in FIGS. 1 and 3 ) are disposed in a direction of the strings of the solar cell panel 200, which is different in the structure of the lead wires from those of the implementations described above, which are used when the connection parts of the junction box connected to the lead wires are disposed in a direction across the strings of the solar cell panel.
  • the junction box connection parts OLW1-3 and OLW2-3 and the interconnector connection parts OLW1-1 and OLW2-1 of the outer lead wires OLW1 and OLW2 are arranged to be parallel such that they cross the interconnectors, and the coupling parts OLW1-2 and OLW2-2 coupling the interconnector connection parts OLW1-1 and OLW2-1 and the junction box connection parts OLW1-3 and OLW2-3 are linearly formed to be arranged to be parallel to the interconnectors.
  • junction box connection parts ILW1-2 and ILW2-2 and the interconnector connection parts ILW1-1 and ILW2-1 of the inner lead wires ILW1 and ILW2 are arranged to be parallel to each other such that they cross the interconnectors, and the coupling parts ILW1-3 and ILW2-3 coupling the interconnector connection parts ILW1-1 and ILW2-1 and the junction box connection parts ILW1-2 and ILW2-2 are arranged to be parallel to the interconnectors.
  • a length L1 of the coupling part ILW1-3 of the first inner lead wire ILW1 and a length L2 of the coupling part ILW2-3 of the second inner lead wire ILW2 in direction of the strings may be different, and also a length L3 of the coupling part OLW1-2 of the first outer lead wire OLW1 and a length L4 of the coupling part OLW2-2 of the second outer lead wire OLW2 in the direction of the strings may be different.
  • FIG. 7 it is illustrated such that the length L1 of the coupling part ILW1-3 of the first inner lead wire ILW1 and the length L3 of the coupling part OLW1-2 of the first outer lead wire OLW1 are shorter than the length L2 of the coupling part ILW2-3 of the second inner lead wire ILW2 and the length L4 of the coupling part OLW2-2 of the second outer lead wire OLW2.
  • the length L1 of the coupling part ILW1-3 of the first inner lead wire ILW1 and the length L3 of the coupling part OLW1-2 of the first outer lead wire OLW1 may be longer than the length L2 of the coupling part ILW2-3 of the second inner lead wire ILW2 and the length L4 of the coupling part OLW2-2 of the second outer lead wire OLW2.
  • At least one of the parts may be formed to be separated from the other parts or all of the parts may be integrally formed as a single body.
  • FIG. 8 is a rear view of a solar cell module having lead wires according to another implementation of a solar cell module.
  • a solar cell module according to the implementation of FIG. 8 includes six strings, namely, first to sixth strings S1, S2, S3, S4, S5, and S6.
  • the first and sixth strings S1 and S6 are outer strings
  • the second to fifth strings S2, S3, S4, and S5 are inner strings.
  • the lead wires used for the solar cell module having the configuration of FIG. 8 are configured to have an overall shape and structure similar to those of the lead wires according to the implementation of FIGS 3 , 4 , and 6 , and are different in that the interconnector connection part ILW1-1 of the first inner lead wire ILW1 is formed having a length sufficient to connect with both the interconnector 220b of the second string S2 and the interconnector 220c of the third string S3. Likewise, the interconnector connection part ILW2-1 of the second inner lead wire ILW2 is formed having a length sufficient to connect with both the interconnectors 220d and 220e of the fourth and fifth strings S4 and S5.
  • Reference numerals OLW1-1 and OLW2-1 in FIG. 8 denote interconnector connection parts of the first and second outer lead wires OLW1 and OLW2, respectively.
  • the solar cell module can include other numbers of strings of solar cells.
  • the solar cell module can include first to eighth strings.
  • the first and eighth strings constitute outer strings, while the other remaining strings, namely the second to seventh strings constitute inner strings.
  • the lead wires may include a first outer lead wire OLW1 connected with interconnectors of the first string, a first inner lead wire ILW1 simultaneously connected with interconnectors of the second and third strings, a second inner lead wire ILW2 connected with interconnectors of the fourth string, a third inner lead wire ILW3 connected with interconnectors of the fifth string, a fourth inner lead wire ILW4 connected with interconnectors of the sixth and seventh strings, and a second outer lead wire OLW2 connected with interconnectors of the eighth string.
  • the first outer lead wire OLW1 connected with the interconnectors of the first string, and the second outer lead wire OLW2 connected with the interconnectors of the eighth string may be formed to have the same structure as that of the first inner lead wire ILW1 simultaneously connecting the interconnectors of the second and third strings and the fourth inner lead wire ILW4 simultaneously connecting the interconnectors of the sixth and seventh strings as shown in FIG. 9 , or may be formed to have such a structure as illustrated in FIG. 10 .
  • the lead wires may be arranged in one of a number of various different configurations such that they do not overlap with each other.
  • the need for an insulating material to be included between overlapping portions of the lead wires can be avoided.
  • the configuration of the lead wires can be selected such that the lead wires do not extend beyond the interconnector connecting parts.

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Claims (15)

  1. Module de cellules solaires comprenant :
    une première chaîne (S1) comprenant une pluralité de premières cellules solaires (210) connectées électriquement par une pluralité de premiers interconnecteurs (220a) ;
    une seconde chaîne (S2) comprenant une pluralité de secondes cellules solaires (210) connectées électriquement par une pluralité de seconds interconnecteurs (220b) ;
    un premier fil conducteur (OLW1-1) connectant électriquement la pluralité de premiers interconnecteurs (220a) positionnés à une première extrémité de la première chaîne (S1) ; et
    un deuxième fil conducteur (OLW1-2, OLW1-3) connectant électriquement le premier fil conducteur (OLW1-1) et une boîte de jonction (400),
    caractérisé en ce que
    dans lequel le premier fil conducteur (OLW1-1) est formé au niveau d'une partie extérieure de la première chaîne (S1) et ne chevauche pas la pluralité de premières cellules solaires (210) de la première chaîne (S1), et
    dans lequel une partie du deuxième fil conducteur (OLW1-2, OLW1-3) est formée à l'intérieur de la seconde chaîne (S2) et chevauche une partie de la pluralité de secondes cellules solaires (210) de la seconde chaîne (S2).
  2. Module de cellules solaires selon la revendication 1, comprenant en outre ;
    des couches de protection (230) disposées au niveau de surfaces avant et arrière de la pluralité de premières cellules solaires et de la pluralité de secondes cellules solaires,
    un élément transparent (240) disposé sur la couche de protection (230) sur la surface avant de la pluralité de premières cellules solaires et de la pluralité de secondes cellules solaires, et
    une feuille arrière (250) disposée sur la couche de protection (230) sur la surface arrière de la pluralité de premières cellules solaires et de la pluralité de secondes cellules solaires.
  3. Module de cellules solaires selon la revendication 1 ou 2, dans lequel la première chaîne (S1) est une chaîne extérieure positionnée le plus près de deux bords extérieurs du module de cellules solaires et la seconde chaîne (S2) est une chaîne intérieure positionnée entre deux premières chaînes (S1).
  4. Module de cellules solaires selon la revendication 3, dans lequel le deuxième fil conducteur (OLW1-2, OLW1-3) comprend une partie de couplage (OLW1-2) couplée à la partie d'extrémité du premier fil conducteur (OLW1-1) et une partie de connexion de boîte de jonction (OLW1-3) couplée au niveau de la partie de couplage (OLW1-2) et de la boîte de jonction (140).
  5. Module de cellules solaires selon la revendication 4, dans lequel la partie de couplage (OLW1-2) du deuxième fil conducteur (OLW1-2, OLW1-3) comprend une première partie de couplage (OLW1-2-1) couplée à une partie d'extrémité du premier fil conducteur (OLW1-1) et une seconde partie de couplage (OLW1-2-2) couplée à la première partie de couplage (OLW1-2-1) et à la partie de connexion de boîte de jonction (OLW1-3).
  6. Module de cellules solaires selon la revendication 5, dans lequel le premier fil conducteur (OLW1-1) est agencé pour croiser la pluralité de premiers interconnecteurs (220a), la première partie de couplage (OLW1-2-1) de la partie de couplage (OLW1-2) et la partie de connexion de boîte de jonction (OLW1-3) du deuxième fil conducteur (OLW1-2, OLW1-3).
  7. Module de cellules solaires selon la revendication 6, dans lequel le premier fil conducteur (OLW1-1) est parallèle à la deuxième partie de couplage (OLW1-2-2) de la partie de couplage (OLW1-2).
  8. Module de cellules solaires selon la revendication 7, dans lequel le premier fil conducteur (OLW1-1) et le deuxième fil conducteur (OLW1-2, OLW1-3) sont formés séparément.
  9. Module de cellules solaires selon la revendication 8, dans lequel la première partie de couplage (OLW1-2-1), la deuxième partie de couplage (OLW1-2-2) et la partie de connexion de boîte de jonction (OLW1-3) sont formées séparément.
  10. Module de cellules solaires selon la revendication 7, dans lequel le premier fil conducteur (OLW1-1) et le deuxième fil conducteur (OLW1-2, OLW1-3) sont formés d'un seul tenant.
  11. Module de cellules solaires selon la revendication 10, dans lequel la première partie de couplage (OLW1-2-1), la deuxième partie de couplage (OLW1-2-2) et la partie de connexion de boîte de jonction (OLW1-3) sont formées d'un seul tenant.
  12. Module de cellules solaires selon l'une quelconque des revendications précédentes, comprenant en outre ;
    un troisième fil conducteur (ILW1-1) connectant électriquement la pluralité de seconds interconnecteurs (220b) positionnés à une première extrémité de la seconde chaîne (Ss) ; et
    un quatrième fil conducteur (ILW1-2) connectant électriquement le troisième fil conducteur (ILW1-1) et la boîte de jonction (400),
    dans lequel les troisième et quatrième fils conducteurs (ILW1-1, ILW1-2) sont formés au niveau d'une partie extérieure de la seconde chaîne (S2) et ne chevauchent pas la pluralité de secondes cellules solaires (210) de la seconde chaîne (S2).
  13. Module de cellules solaires selon la revendication 12, dans lequel le troisième fil conducteur (ILW1-1) est agencé pour croiser la pluralité de seconds interconnecteurs (220b) et le quatrième fil conducteur (ILW1-2).
  14. Module de cellules solaires selon l'une quelconque des revendications 2 à 13, comprenant en outre un film isolant (260) positionné sur la surface arrière de la pluralité de premières cellules solaires et de la pluralité de secondes cellules solaires.
  15. Module de cellules solaires selon la revendication 14, dans lequel le film isolant (260) est constitué d'un matériau opaque qui est similaire ou identique à celui de la feuille arrière (250).
EP19155708.1A 2010-05-17 2010-11-16 Module de cellule solaire Active EP3503207B1 (fr)

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KR1020100045876A KR100990116B1 (ko) 2010-05-17 2010-05-17 태양전지 모듈
EP17201313.8A EP3300124B1 (fr) 2010-05-17 2010-11-16 Module de cellule solaire
EP10014676.0A EP2388827B1 (fr) 2010-05-17 2010-11-16 Module de cellule solaire

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EP17201313.8A Division EP3300124B1 (fr) 2010-05-17 2010-11-16 Module de cellule solaire
EP17201313.8A Division-Into EP3300124B1 (fr) 2010-05-17 2010-11-16 Module de cellule solaire
EP10014676.0A Division EP2388827B1 (fr) 2010-05-17 2010-11-16 Module de cellule solaire

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EP3503207B1 true EP3503207B1 (fr) 2020-10-14

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KR100990116B1 (ko) 2010-10-29
US20140076375A1 (en) 2014-03-20
US8586855B2 (en) 2013-11-19
DE202010018465U1 (de) 2016-11-29
EP3503207A1 (fr) 2019-06-26
US20110220168A1 (en) 2011-09-15
CN102254970A (zh) 2011-11-23
EP2388827A3 (fr) 2014-03-12
EP3300124B1 (fr) 2019-03-27
CN102254970B (zh) 2014-09-03
EP2388827A2 (fr) 2011-11-23
US8835744B2 (en) 2014-09-16
EP2388827B1 (fr) 2018-01-03
EP3300124A1 (fr) 2018-03-28

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